Home / 3,431.52-4,735.44-1,939.68

Finding the Fourth Proportional to 3,431.52, 4,735.44 and 1,939.68

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Solution

The fourth proportional to 3,431.52, 4,735.44 and 1,939.68 is: 2,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.52 : 4,735.44 = 1,939.68 : x
  2. Step 2: Convert to fraction form
    3,431.52/4,735.44 = 1,939.68/x
  3. Step 3: Cross multiply
    3,431.52x = 4,735.44 × 1,939.68
  4. Step 4: Simplify right side
    3,431.52x = 9,185,238.26
  5. Step 5: Solve for x
    x = 9,185,238.26/3,431.52
  6. Step 6: Final answer
    x = 2,676.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.